gentoo-stats IDs

[gabe-kai]

When I re-install Gentoo (different hard drive, same system) should I get a new system-id, or should I use the old system-id. And if I should keep the old one, how should I go about moving it while I have both hard drives in?

(new system mounted in /mnt/gentoo on the old system)

Thanks!
`Gabe
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